Package org.apache.hadoop.hbase.io.compress.aircompressor

Class Lz4Codec

java.lang.Object

org.apache.hadoop.hbase.io.compress.aircompressor.Lz4Codec

All Implemented Interfaces:

org.apache.hadoop.conf.Configurable, org.apache.hadoop.io.compress.CompressionCodec

@Private
public class Lz4Codec
extends Object
implements org.apache.hadoop.conf.Configurable, org.apache.hadoop.io.compress.CompressionCodec

Hadoop Lz4 codec implemented with aircompressor.

This is data format compatible with Hadoop's native lz4 codec.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
class	Lz4Codec.HadoopLz4Compressor
class	Lz4Codec.HadoopLz4Decompressor

Nested classes/interfaces inherited from interface org.apache.hadoop.io.compress.CompressionCodec

org.apache.hadoop.io.compress.CompressionCodec.Util

Field Summary

Fields

Modifier and Type	Field	Description
private int	bufferSize
private org.apache.hadoop.conf.Configuration	conf
static final String	LZ4_BUFFER_SIZE_KEY

Constructor Summary

Constructors

Constructor	Description
Lz4Codec()

Method Summary

Modifier and Type	Method	Description
org.apache.hadoop.io.compress.Compressor	createCompressor()
org.apache.hadoop.io.compress.Decompressor	createDecompressor()
org.apache.hadoop.io.compress.CompressionInputStream	createInputStream(InputStream in)
org.apache.hadoop.io.compress.CompressionInputStream	createInputStream(InputStream in, org.apache.hadoop.io.compress.Decompressor d)
org.apache.hadoop.io.compress.CompressionOutputStream	createOutputStream(OutputStream out)
org.apache.hadoop.io.compress.CompressionOutputStream	createOutputStream(OutputStream out, org.apache.hadoop.io.compress.Compressor c)
(package private) static int	getBufferSize(org.apache.hadoop.conf.Configuration conf)
Class<? extends org.apache.hadoop.io.compress.Compressor>	getCompressorType()
org.apache.hadoop.conf.Configuration	getConf()
Class<? extends org.apache.hadoop.io.compress.Decompressor>	getDecompressorType()
String	getDefaultExtension()
void	setConf(org.apache.hadoop.conf.Configuration conf)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details

LZ4_BUFFER_SIZE_KEY

public static final String LZ4_BUFFER_SIZE_KEY

See Also:

• Constant Field Values

conf

private org.apache.hadoop.conf.Configuration conf

bufferSize

private int bufferSize

Constructor Details

Lz4Codec

public Lz4Codec()

Method Details

getConf

public org.apache.hadoop.conf.Configuration getConf()

Specified by:

getConf in interface org.apache.hadoop.conf.Configurable

setConf

public void setConf(org.apache.hadoop.conf.Configuration conf)

Specified by:

setConf in interface org.apache.hadoop.conf.Configurable

createCompressor

public org.apache.hadoop.io.compress.Compressor createCompressor()

Specified by:

createCompressor in interface org.apache.hadoop.io.compress.CompressionCodec

createDecompressor

public org.apache.hadoop.io.compress.Decompressor createDecompressor()

Specified by:

createDecompressor in interface org.apache.hadoop.io.compress.CompressionCodec

createInputStream

public org.apache.hadoop.io.compress.CompressionInputStream createInputStream(InputStream in)
                                                                       throws IOException

Specified by:

createInputStream in interface org.apache.hadoop.io.compress.CompressionCodec

Throws:

IOException

createInputStream

public org.apache.hadoop.io.compress.CompressionInputStream createInputStream(InputStream in,
 org.apache.hadoop.io.compress.Decompressor d)
                                                                       throws IOException

Specified by:

createInputStream in interface org.apache.hadoop.io.compress.CompressionCodec

Throws:

IOException

createOutputStream

public org.apache.hadoop.io.compress.CompressionOutputStream createOutputStream(OutputStream out)
                                                                         throws IOException

Specified by:

createOutputStream in interface org.apache.hadoop.io.compress.CompressionCodec

Throws:

IOException

createOutputStream

public org.apache.hadoop.io.compress.CompressionOutputStream createOutputStream(OutputStream out,
 org.apache.hadoop.io.compress.Compressor c)
                                                                         throws IOException

Specified by:

createOutputStream in interface org.apache.hadoop.io.compress.CompressionCodec

Throws:

IOException

getCompressorType

public Class<? extends org.apache.hadoop.io.compress.Compressor> getCompressorType()

Specified by:

getCompressorType in interface org.apache.hadoop.io.compress.CompressionCodec

getDecompressorType

public Class<? extends org.apache.hadoop.io.compress.Decompressor> getDecompressorType()

Specified by:

getDecompressorType in interface org.apache.hadoop.io.compress.CompressionCodec

getDefaultExtension

public String getDefaultExtension()

Specified by:

getDefaultExtension in interface org.apache.hadoop.io.compress.CompressionCodec

getBufferSize

static int getBufferSize(org.apache.hadoop.conf.Configuration conf)